<!--
 * @Author: zxc
 * @Date: 2021-02-14 13:24:03
 * @LastEditTime: 2021-02-14 13:27:27
 * @LastEditors: zxc
 * @Description: 
-->
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>时间线记录内存变化</title>
</head>

<body>
  <button id="btn">Add</button>
</body>
<script>
  const arrList = []

  function test() {
    for (let i = 0; i < 100000; i++) {
      document.body.appendChild(document.createElement('p'))
    }
    arrList.push(new Array(1000000).join('x'))
  }
  document.getElementById('btn').addEventListener("click", test);
</script>

</html>